These are the Aluminum Red Shock Caps from Traxxas. FEATURES: Aluminum construction Anodized red in color Fits all Ultra Shocks INCLUDES: Four Aluminum Shock Caps REQUIRES: Installation on the shocks cnh 2/15/10 ir/jxs BOX DIMENSIONS: 3.25" W. X .75" H. X 6.00" L. BOX WEIGHT: .07 LBS